209719180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{1283}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 481469184

約数和(自身を除く): 271750004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 743, 1283, 1486, 2566, 2972, 3715, 5132, 6415, 7430, 8173, 12830, 14113, 14860, 16346, 25660, 28226, 32692, 40865, 56452, 70565, 81730, 141130, 163460, 282260, 953269, 1906538, 3813076, 4766345, 9532690, 10485959, 19065380, 20971918, 41943836, 52429795, 104859590, 209719180]

約数ペア:

[(1, 209719180), (2, 104859590), (4, 52429795), (5, 41943836), (10, 20971918), (11, 19065380), (20, 10485959), (22, 9532690), (44, 4766345), (55, 3813076), (110, 1906538), (220, 953269), (743, 282260), (1283, 163460), (1486, 141130), (2566, 81730), (2972, 70565), (3715, 56452), (5132, 40865), (6415, 32692), (7430, 28226), (8173, 25660), (12830, 16346), (14113, 14860)]